TaxVig / Free federal gambling tax calculator

Sports betting taxes, worked out.

See what your betting adds to your federal tax, and whether to itemize. Next: import your bets, see them per bet and by session, and hand your CPA clean numbers.

New for 2026: the 90% loss rule. You can deduct only 90% of your losses now, capped at winnings. Win $100K and lose $100K, and $10K of winnings you never kept can still be taxed. Recreational bettors must itemize to deduct any of it.

Sources: IRS Publication 505 and IRS gambling-loss guidance.

Run your annual totals, or see the same bets counted two ways.

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A calculator, not tax advice. Show this to your CPA.